We ear comudefrom the text that .A. American cities are chan

We ear comudefrom the text that .A. American cities are changing far the worseB.

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From Paragraph 5,we can learn that.

From Paragraph 5,we can learn that.A.mushrooms should not be eaten B.vegetables

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第39题答案是:__________

第39题答案是:__________

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A.politelyB.patientlyC.unconsciouslyD.slowly

A.politelyB.patientlyC.unconsciouslyD.slowly

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锂离子电池的广泛应用使回收利用锂货源成为重要课题:某研究性学习小组对废旧锂离子电池正极材料(LiMn2O4、碳粉等涂覆在

锂离子电池的广泛应用使回收利用锂货源成为重要课题:某研究性学习小组对废旧锂离子电池正极材料(LiMn2O4、碳粉等涂覆在铝箔上)进行资源回收研究,设计实验流程如

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